/*
* Linux network driver for Brocade Converged Network Adapter.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) Version 2 as
* published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
/*
* Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*/
#include "bfa_ioc.h"
#include "bfi_reg.h"
#include "bfa_defs.h"
/* IOC local definitions */
/* Asic specific macros : see bfa_hw_cb.c and bfa_hw_ct.c for details. */
#define bfa_ioc_firmware_lock(__ioc) \
((__ioc)->ioc_hwif->ioc_firmware_lock(__ioc))
#define bfa_ioc_firmware_unlock(__ioc) \
((__ioc)->ioc_hwif->ioc_firmware_unlock(__ioc))
#define bfa_ioc_reg_init(__ioc) ((__ioc)->ioc_hwif->ioc_reg_init(__ioc))
#define bfa_ioc_map_port(__ioc) ((__ioc)->ioc_hwif->ioc_map_port(__ioc))
#define bfa_ioc_notify_fail(__ioc) \
((__ioc)->ioc_hwif->ioc_notify_fail(__ioc))
#define bfa_ioc_sync_start(__ioc) \
((__ioc)->ioc_hwif->ioc_sync_start(__ioc))
#define bfa_ioc_sync_join(__ioc) \
((__ioc)->ioc_hwif->ioc_sync_join(__ioc))
#define bfa_ioc_sync_leave(__ioc) \
((__ioc)->ioc_hwif->ioc_sync_leave(__ioc))
#define bfa_ioc_sync_ack(__ioc) \
((__ioc)->ioc_hwif->ioc_sync_ack(__ioc))
#define bfa_ioc_sync_complete(__ioc) \
((__ioc)->ioc_hwif->ioc_sync_complete(__ioc))
#define bfa_ioc_mbox_cmd_pending(__ioc) \
(!list_empty(&((__ioc)->mbox_mod.cmd_q)) || \
readl((__ioc)->ioc_regs.hfn_mbox_cmd))
static bool bfa_nw_auto_recover = true;
/*
* forward declarations
*/
static void bfa_ioc_hw_sem_init(struct bfa_ioc *ioc);
static void bfa_ioc_hw_sem_get(struct bfa_ioc *ioc);
static void bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc);
static void bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force);
static void bfa_ioc_poll_fwinit(struct bfa_ioc *ioc);
static void bfa_ioc_send_enable(struct bfa_ioc *ioc);
static void bfa_ioc_send_disable(struct bfa_ioc *ioc);
static void bfa_ioc_send_getattr(struct bfa_ioc *ioc);
static void bfa_ioc_hb_monitor(struct bfa_ioc *ioc);
static void bfa_ioc_hb_stop(struct bfa_ioc *ioc);
static void bfa_ioc_reset(struct bfa_ioc *ioc, bool force);
static void bfa_ioc_mbox_poll(struct bfa_ioc *ioc);
static void bfa_ioc_mbox_flush(struct bfa_ioc *ioc);
static void bfa_ioc_recover(struct bfa_ioc *ioc);
static void bfa_ioc_event_notify(struct bfa_ioc *, enum bfa_ioc_event);
static void bfa_ioc_disable_comp(struct bfa_ioc *ioc);
static void bfa_ioc_lpu_stop(struct bfa_ioc *ioc);
static void bfa_nw_ioc_debug_save_ftrc(struct bfa_ioc *ioc);
static void bfa_ioc_fail_notify(struct bfa_ioc *ioc);
static void bfa_ioc_pf_enabled(struct bfa_ioc *ioc);
static void bfa_ioc_pf_disabled(struct bfa_ioc *ioc);
static void bfa_ioc_pf_failed(struct bfa_ioc *ioc);
static void bfa_ioc_pf_hwfailed(struct bfa_ioc *ioc);
static void bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc);
static void bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type,
u32 boot_param);
static u32 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr);
static void bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc,
char *serial_num);
static void bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc,
char *fw_ver);
static void bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc,
char *chip_rev);
static void bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc,
char *optrom_ver);
static void bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc,
char *manufacturer);
static void bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model);
static u64 bfa_ioc_get_pwwn(struct bfa_ioc *ioc);
/* IOC state machine definitions/declarations */
enum ioc_event {
IOC_E_RESET = 1, /*!< IOC reset request */
IOC_E_ENABLE = 2, /*!< IOC enable request */
IOC_E_DISABLE = 3, /*!< IOC disable request */
IOC_E_DETACH = 4, /*!< driver detach cleanup */
IOC_E_ENABLED = 5, /*!< f/w enabled */
IOC_E_FWRSP_GETATTR = 6, /*!< IOC get attribute response */
IOC_E_DISABLED = 7, /*!< f/w disabled */
IOC_E_PFFAILED = 8, /*!< failure notice by iocpf sm */
IOC_E_HBFAIL = 9, /*!< heartbeat failure */
IOC_E_HWERROR = 10, /*!< hardware error interrupt */
IOC_E_TIMEOUT = 11, /*!< timeout */
IOC_E_HWFAILED = 12, /*!< PCI mapping failure notice */
};
bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, reset, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, enabling, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, getattr, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, op, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, fail_retry, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, fail, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, hwfail, struct bfa_ioc, enum ioc_event);
static struct bfa_sm_table ioc_sm_table[] = {
{BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
{BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
{BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
{BFA_SM(bfa_ioc_sm_getattr), BFA_IOC_GETATTR},
{BFA_SM(bfa_ioc_sm_op), BFA_IOC_OPERATIONAL},
{BFA_SM(bfa_ioc_sm_fail_retry), BFA_IOC_INITFAIL},
{BFA_SM(bfa_ioc_sm_fail), BFA_IOC_FAIL},
{BFA_SM(bfa_ioc_sm_disabling), BFA_IOC_DISABLING},
{BFA_SM(bfa_ioc_sm_disabled), BFA_IOC_DISABLED},
{BFA_SM(bfa_ioc_sm_hwfail), BFA_IOC_HWFAIL},
};
/*
* Forward declareations for iocpf state machine
*/
static void bfa_iocpf_enable(struct bfa_ioc *ioc);
static void bfa_iocpf_disable(struct bfa_ioc *ioc);
static void bfa_iocpf_fail(struct bfa_ioc *ioc);
static void bfa_iocpf_initfail(struct bfa_ioc *ioc);
static void bfa_iocpf_getattrfail(struct bfa_ioc *ioc);
static void bfa_iocpf_stop(struct bfa_ioc *ioc);
/* IOCPF state machine events */
enum iocpf_event {
IOCPF_E_ENABLE = 1, /*!< IOCPF enable request */
IOCPF_E_DISABLE = 2, /*!< IOCPF disable request */
IOCPF_E_STOP = 3, /*!< stop on driver detach */
IOCPF_E_FWREADY = 4, /*!< f/w initialization done */
IOCPF_E_FWRSP_ENABLE = 5, /*!< enable f/w response */
IOCPF_E_FWRSP_DISABLE = 6, /*!< disable f/w response */
IOCPF_E_FAIL = 7, /*!< failure notice by ioc sm */
IOCPF_E_INITFAIL = 8, /*!< init fail notice by ioc sm */
IOCPF_E_GETATTRFAIL = 9, /*!< init fail notice by ioc sm */
IOCPF_E_SEMLOCKED = 10, /*!< h/w semaphore is locked */
IOCPF_E_TIMEOUT = 11, /*!< f/w response timeout */
IOCPF_E_SEM_ERROR = 12, /*!< h/w sem mapping error */
};
/* IOCPF states */
enum bfa_iocpf_state {
BFA_IOCPF_RESET = 1, /*!< IOC is in reset state */
BFA_IOCPF_SEMWAIT = 2, /*!< Waiting for IOC h/w semaphore */
BFA_IOCPF_HWINIT = 3, /*!< IOC h/w is being initialized */
BFA_IOCPF_READY = 4, /*!< IOCPF is initialized */
BFA_IOCPF_INITFAIL = 5, /*!< IOCPF failed */
BFA_IOCPF_FAIL = 6, /*!< IOCPF failed */
BFA_IOCPF_DISABLING = 7, /*!< IOCPF is being disabled */
BFA_IOCPF_DISABLED = 8, /*!< IOCPF is disabled */
BFA_IOCPF_FWMISMATCH = 9, /*!< IOC f/w different from drivers */
};
bfa_fsm_state_decl(bfa_iocpf, reset, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, fwcheck, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, mismatch, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, semwait, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, hwinit, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, enabling, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, ready, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, initfail_sync, struct bfa_iocpf,
enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, initfail, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, fail_sync, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, fail, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, disabling, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf,
enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf, enum iocpf_event);
static struct bfa_sm_table iocpf_sm_table[] = {
{BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
{BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
{BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
{BFA_SM(bfa_iocpf_sm_semwait), BFA_IOCPF_SEMWAIT},
{BFA_SM(bfa_iocpf_sm_hwinit), BFA_IOCPF_HWINIT},
{BFA_SM(bfa_iocpf_sm_enabling), BFA_IOCPF_HWINIT},
{BFA_SM(bfa_iocpf_sm_ready), BFA_IOCPF_READY},
{BFA_SM(bfa_iocpf_sm_initfail_sync), BFA_IOCPF_INITFAIL},
{BFA_SM(bfa_iocpf_sm_initfail), BFA_IOCPF_INITFAIL},
{BFA_SM(bfa_iocpf_sm_fail_sync), BFA_IOCPF_FAIL},
{BFA_SM(bfa_iocpf_sm_fail), BFA_IOCPF_FAIL},
{BFA_SM(bfa_iocpf_sm_disabling), BFA_IOCPF_DISABLING},
{BFA_SM(bfa_iocpf_sm_disabling_sync), BFA_IOCPF_DISABLING},
{BFA_SM(bfa_iocpf_sm_disabled), BFA_IOCPF_DISABLED},
};
/* IOC State Machine */
/* Beginning state. IOC uninit state. */
static void
bfa_ioc_sm_uninit_entry(struct bfa_ioc *ioc)
{
}
/* IOC is in uninit state. */
static void
bfa_ioc_sm_uninit(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_RESET:
bfa_fsm_set_state(ioc, bfa_ioc_sm_reset);
break;
default:
bfa_sm_fault(event);
}
}
/* Reset entry actions -- initialize state machine */
static void
bfa_ioc_sm_reset_entry(struct bfa_ioc *ioc)
{
bfa_fsm_set_state(&ioc->iocpf, bfa_iocpf_sm_reset);
}
/* IOC is in reset state. */
static void
bfa_ioc_sm_reset(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_ENABLE:
bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
break;
case IOC_E_DISABLE:
bfa_ioc_disable_comp(ioc);
break;
case IOC_E_DETACH:
bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_ioc_sm_enabling_entry(struct bfa_ioc *ioc)
{
bfa_iocpf_enable(ioc);
}
/* Host IOC function is being enabled, awaiting response from firmware.
* Semaphore is acquired.
*/
static void
bfa_ioc_sm_enabling(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_ENABLED:
bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
break;
case IOC_E_PFFAILED:
/* !!! fall through !!! */
case IOC_E_HWERROR:
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
if (event != IOC_E_PFFAILED)
bfa_iocpf_initfail(ioc);
break;
case IOC_E_HWFAILED:
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail);
break;
case IOC_E_DISABLE:
bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
break;
case IOC_E_DETACH:
bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
bfa_iocpf_stop(ioc);
break;
case IOC_E_ENABLE:
break;
default:
bfa_sm_fault(event);
}
}
/* Semaphore should be acquired for version check. */
static void
bfa_ioc_sm_getattr_entry(struct bfa_ioc *ioc)
{
mod_timer(&ioc->ioc_timer, jiffies +
msecs_to_jiffies(BFA_IOC_TOV));
bfa_ioc_send_getattr(ioc);
}
/* IOC configuration in progress. Timer is active. */
static void
bfa_ioc_sm_getattr(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_FWRSP_GETATTR:
del_timer(&ioc->ioc_timer);
bfa_fsm_set_state(ioc, bfa_ioc_sm_op);
break;
case IOC_E_PFFAILED:
case IOC_E_HWERROR:
del_timer(&ioc->ioc_timer);
/* fall through */
case IOC_E_TIMEOUT:
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
if (event != IOC_E_PFFAILED)
bfa_iocpf_getattrfail(ioc);
break;
case IOC_E_DISABLE:
del_timer(&ioc->ioc_timer);
bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
break;
case IOC_E_ENABLE:
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_ioc_sm_op_entry(struct bfa_ioc *ioc)
{
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_OK);
bfa_ioc_event_notify(ioc, BFA_IOC_E_ENABLED);
bfa_ioc_hb_monitor(ioc);
}
static void
bfa_ioc_sm_op(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_ENABLE:
break;
case IOC_E_DISABLE:
bfa_ioc_hb_stop(ioc);
bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
break;
case IOC_E_PFFAILED:
case IOC_E_HWERROR:
bfa_ioc_hb_stop(ioc);
/* !!! fall through !!! */
case IOC_E_HBFAIL:
if (ioc->iocpf.auto_recover)
bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
else
bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
bfa_ioc_fail_notify(ioc);
if (event != IOC_E_PFFAILED)
bfa_iocpf_fail(ioc);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_ioc_sm_disabling_entry(struct bfa_ioc *ioc)
{
bfa_iocpf_disable(ioc);
}
/* IOC is being disabled */
static void
bfa_ioc_sm_disabling(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_DISABLED:
bfa_fsm_set_state(ioc, bfa_ioc_sm_disabled);
break;
case IOC_E_HWERROR:
/*
* No state change. Will move to disabled state
* after iocpf sm completes failure processing and
* moves to disabled state.
*/
bfa_iocpf_fail(ioc);
break;
case IOC_E_HWFAILED:
bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail);
bfa_ioc_disable_comp(ioc);
break;
default:
bfa_sm_fault(event);
}
}
/* IOC disable completion entry. */
static void
bfa_ioc_sm_disabled_entry(struct bfa_ioc *ioc)
{
bfa_ioc_disable_comp(ioc);
}
static void
bfa_ioc_sm_disabled(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_ENABLE:
bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
break;
case IOC_E_DISABLE:
ioc->cbfn->disable_cbfn(ioc->bfa);
break;
case IOC_E_DETACH:
bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
bfa_iocpf_stop(ioc);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_ioc_sm_fail_retry_entry(struct bfa_ioc *ioc)
{
}
/* Hardware initialization retry. */
static void
bfa_ioc_sm_fail_retry(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_ENABLED:
bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
break;
case IOC_E_PFFAILED:
case IOC_E_HWERROR:
/**
* Initialization retry failed.
*/
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
if (event != IOC_E_PFFAILED)
bfa_iocpf_initfail(ioc);
break;
case IOC_E_HWFAILED:
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail);
break;
case IOC_E_ENABLE:
break;
case IOC_E_DISABLE:
bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
break;
case IOC_E_DETACH:
bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
bfa_iocpf_stop(ioc);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_ioc_sm_fail_entry(struct bfa_ioc *ioc)
{
}
/* IOC failure. */
static void
bfa_ioc_sm_fail(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_ENABLE:
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
break;
case IOC_E_DISABLE:
bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
break;
case IOC_E_DETACH:
bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
bfa_iocpf_stop(ioc);
break;
case IOC_E_HWERROR:
/* HB failure notification, ignore. */
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_ioc_sm_hwfail_entry(struct bfa_ioc *ioc)
{
}
/* IOC failure. */
static void
bfa_ioc_sm_hwfail(struct bfa_ioc *ioc, enum ioc_event event)
{
switch (event) {
case IOC_E_ENABLE:
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
break;
case IOC_E_DISABLE:
ioc->cbfn->disable_cbfn(ioc->bfa);
break;
case IOC_E_DETACH:
bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
break;
default:
bfa_sm_fault(event);
}
}
/* IOCPF State Machine */
/* Reset entry actions -- initialize state machine */
static void
bfa_iocpf_sm_reset_entry(struct bfa_iocpf *iocpf)
{
iocpf->fw_mismatch_notified = false;
iocpf->auto_recover = bfa_nw_auto_recover;
}
/* Beginning state. IOC is in reset state. */
static void
bfa_iocpf_sm_reset(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
switch (event) {
case IOCPF_E_ENABLE:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
break;
case IOCPF_E_STOP:
break;
default:
bfa_sm_fault(event);
}
}
/* Semaphore should be acquired for version check. */
static void
bfa_iocpf_sm_fwcheck_entry(struct bfa_iocpf *iocpf)
{
bfa_ioc_hw_sem_init(iocpf->ioc);
bfa_ioc_hw_sem_get(iocpf->ioc);
}
/* Awaiting h/w semaphore to continue with version check. */
static void
bfa_iocpf_sm_fwcheck(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_SEMLOCKED:
if (bfa_ioc_firmware_lock(ioc)) {
if (bfa_ioc_sync_start(ioc)) {
bfa_ioc_sync_join(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
} else {
bfa_ioc_firmware_unlock(ioc);
bfa_nw_ioc_hw_sem_release(ioc);
mod_timer(&ioc->sem_timer, jiffies +
msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
}
} else {
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_mismatch);
}
break;
case IOCPF_E_SEM_ERROR:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
bfa_ioc_pf_hwfailed(ioc);
break;
case IOCPF_E_DISABLE:
bfa_ioc_hw_sem_get_cancel(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
bfa_ioc_pf_disabled(ioc);
break;
case IOCPF_E_STOP:
bfa_ioc_hw_sem_get_cancel(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
break;
default:
bfa_sm_fault(event);
}
}
/* Notify enable completion callback */
static void
bfa_iocpf_sm_mismatch_entry(struct bfa_iocpf *iocpf)
{
/* Call only the first time sm enters fwmismatch state. */
if (!iocpf->fw_mismatch_notified)
bfa_ioc_pf_fwmismatch(iocpf->ioc);
iocpf->fw_mismatch_notified = true;
mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
msecs_to_jiffies(BFA_IOC_TOV));
}
/* Awaiting firmware version match. */
static void
bfa_iocpf_sm_mismatch(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_TIMEOUT:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
break;
case IOCPF_E_DISABLE:
del_timer(&ioc->iocpf_timer);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
bfa_ioc_pf_disabled(ioc);
break;
case IOCPF_E_STOP:
del_timer(&ioc->iocpf_timer);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
break;
default:
bfa_sm_fault(event);
}
}
/* Request for semaphore. */
static void
bfa_iocpf_sm_semwait_entry(struct bfa_iocpf *iocpf)
{
bfa_ioc_hw_sem_get(iocpf->ioc);
}
/* Awaiting semaphore for h/w initialzation. */
static void
bfa_iocpf_sm_semwait(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_SEMLOCKED:
if (bfa_ioc_sync_complete(ioc)) {
bfa_ioc_sync_join(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
} else {
bfa_nw_ioc_hw_sem_release(ioc);
mod_timer(&ioc->sem_timer, jiffies +
msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
}
break;
case IOCPF_E_SEM_ERROR:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
bfa_ioc_pf_hwfailed(ioc);
break;
case IOCPF_E_DISABLE:
bfa_ioc_hw_sem_get_cancel(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_hwinit_entry(struct bfa_iocpf *iocpf)
{
iocpf->poll_time = 0;
bfa_ioc_reset(iocpf->ioc, false);
}
/* Hardware is being initialized. Interrupts are enabled.
* Holding hardware semaphore lock.
*/
static void
bfa_iocpf_sm_hwinit(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_FWREADY:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_enabling);
break;
case IOCPF_E_TIMEOUT:
bfa_nw_ioc_hw_sem_release(ioc);
bfa_ioc_pf_failed(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
break;
case IOCPF_E_DISABLE:
del_timer(&ioc->iocpf_timer);
bfa_ioc_sync_leave(ioc);
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_enabling_entry(struct bfa_iocpf *iocpf)
{
mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
msecs_to_jiffies(BFA_IOC_TOV));
/**
* Enable Interrupts before sending fw IOC ENABLE cmd.
*/
iocpf->ioc->cbfn->reset_cbfn(iocpf->ioc->bfa);
bfa_ioc_send_enable(iocpf->ioc);
}
/* Host IOC function is being enabled, awaiting response from firmware.
* Semaphore is acquired.
*/
static void
bfa_iocpf_sm_enabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_FWRSP_ENABLE:
del_timer(&ioc->iocpf_timer);
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_ready);
break;
case IOCPF_E_INITFAIL:
del_timer(&ioc->iocpf_timer);
/*
* !!! fall through !!!
*/
case IOCPF_E_TIMEOUT:
bfa_nw_ioc_hw_sem_release(ioc);
if (event == IOCPF_E_TIMEOUT)
bfa_ioc_pf_failed(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
break;
case IOCPF_E_DISABLE:
del_timer(&ioc->iocpf_timer);
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_ready_entry(struct bfa_iocpf *iocpf)
{
bfa_ioc_pf_enabled(iocpf->ioc);
}
static void
bfa_iocpf_sm_ready(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
switch (event) {
case IOCPF_E_DISABLE:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
break;
case IOCPF_E_GETATTRFAIL:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
break;
case IOCPF_E_FAIL:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_disabling_entry(struct bfa_iocpf *iocpf)
{
mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
msecs_to_jiffies(BFA_IOC_TOV));
bfa_ioc_send_disable(iocpf->ioc);
}
/* IOC is being disabled */
static void
bfa_iocpf_sm_disabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_FWRSP_DISABLE:
del_timer(&ioc->iocpf_timer);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
break;
case IOCPF_E_FAIL:
del_timer(&ioc->iocpf_timer);
/*
* !!! fall through !!!
*/
case IOCPF_E_TIMEOUT:
writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
break;
case IOCPF_E_FWRSP_ENABLE:
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_disabling_sync_entry(struct bfa_iocpf *iocpf)
{
bfa_ioc_hw_sem_get(iocpf->ioc);
}
/* IOC hb ack request is being removed. */
static void
bfa_iocpf_sm_disabling_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_SEMLOCKED:
bfa_ioc_sync_leave(ioc);
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
break;
case IOCPF_E_SEM_ERROR:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
bfa_ioc_pf_hwfailed(ioc);
break;
case IOCPF_E_FAIL:
break;
default:
bfa_sm_fault(event);
}
}
/* IOC disable completion entry. */
static void
bfa_iocpf_sm_disabled_entry(struct bfa_iocpf *iocpf)
{
bfa_ioc_mbox_flush(iocpf->ioc);
bfa_ioc_pf_disabled(iocpf->ioc);
}
static void
bfa_iocpf_sm_disabled(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_ENABLE:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
break;
case IOCPF_E_STOP:
bfa_ioc_firmware_unlock(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf *iocpf)
{
bfa_nw_ioc_debug_save_ftrc(iocpf->ioc);
bfa_ioc_hw_sem_get(iocpf->ioc);
}
/* Hardware initialization failed. */
static void
bfa_iocpf_sm_initfail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_SEMLOCKED:
bfa_ioc_notify_fail(ioc);
bfa_ioc_sync_leave(ioc);
writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);
break;
case IOCPF_E_SEM_ERROR:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
bfa_ioc_pf_hwfailed(ioc);
break;
case IOCPF_E_DISABLE:
bfa_ioc_hw_sem_get_cancel(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
break;
case IOCPF_E_STOP:
bfa_ioc_hw_sem_get_cancel(ioc);
bfa_ioc_firmware_unlock(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
break;
case IOCPF_E_FAIL:
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_initfail_entry(struct bfa_iocpf *iocpf)
{
}
/* Hardware initialization failed. */
static void
bfa_iocpf_sm_initfail(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_DISABLE:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
break;
case IOCPF_E_STOP:
bfa_ioc_firmware_unlock(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_fail_sync_entry(struct bfa_iocpf *iocpf)
{
/**
* Mark IOC as failed in hardware and stop firmware.
*/
bfa_ioc_lpu_stop(iocpf->ioc);
/**
* Flush any queued up mailbox requests.
*/
bfa_ioc_mbox_flush(iocpf->ioc);
bfa_ioc_hw_sem_get(iocpf->ioc);
}
/* IOC is in failed state. */
static void
bfa_iocpf_sm_fail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
struct bfa_ioc *ioc = iocpf->ioc;
switch (event) {
case IOCPF_E_SEMLOCKED:
bfa_ioc_sync_ack(ioc);
bfa_ioc_notify_fail(ioc);
if (!iocpf->auto_recover) {
bfa_ioc_sync_leave(ioc);
writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
} else {
if (bfa_ioc_sync_complete(ioc))
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
else {
bfa_nw_ioc_hw_sem_release(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
}
}
break;
case IOCPF_E_SEM_ERROR:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
bfa_ioc_pf_hwfailed(ioc);
break;
case IOCPF_E_DISABLE:
bfa_ioc_hw_sem_get_cancel(ioc);
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
break;
case IOCPF_E_FAIL:
break;
default:
bfa_sm_fault(event);
}
}
static void
bfa_iocpf_sm_fail_entry(struct bfa_iocpf *iocpf)
{
}
/* IOC is in failed state. */
static void
bfa_iocpf_sm_fail(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
switch (event) {
case IOCPF_E_DISABLE:
bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
break;
default:
bfa_sm_fault(event);
}
}
/* BFA IOC private functions */
/* Notify common modules registered for notification. */
static void
bfa_ioc_event_notify(struct bfa_ioc *ioc, enum bfa_ioc_event event)
{
struct bfa_ioc_notify *notify;
struct list_head *qe;
list_for_each(qe, &ioc->notify_q) {
notify = (struct bfa_ioc_notify *)qe;
notify->cbfn(notify->cbarg, event);
}
}
static void
bfa_ioc_disable_comp(struct bfa_ioc *ioc)
{
ioc->cbfn->disable_cbfn(ioc->bfa);
bfa_ioc_event_notify(ioc, BFA_IOC_E_DISABLED);
}
bool
bfa_nw_ioc_sem_get(void __iomem *sem_reg)
{
u32 r32;
int cnt = 0;
#define BFA_SEM_SPINCNT 3000
r32 = readl(sem_reg);
while ((r32 & 1) && (cnt < BFA_SEM_SPINCNT)) {
cnt++;
udelay(2);
r32 = readl(sem_reg);
}
if (!(r32 & 1))
return true;
return false;
}
void
bfa_nw_ioc_sem_release(void __iomem *sem_reg)
{
readl(sem_reg);
writel(1, sem_reg);
}
/* Clear fwver hdr */
static void
bfa_ioc_fwver_clear(struct bfa_ioc *ioc)
{
u32 pgnum, pgoff, loff = 0;
int i;
pgnum = PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, loff);
pgoff = PSS_SMEM_PGOFF(loff);
writel(pgnum, ioc->ioc_regs.host_page_num_fn);
for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32)); i++) {
writel(0, ioc->ioc_regs.smem_page_start + loff);
loff += sizeof(u32);
}
}
static void
bfa_ioc_hw_sem_init(struct bfa_ioc *ioc)
{
struct bfi_ioc_image_hdr fwhdr;
u32 fwstate, r32;
/* Spin on init semaphore to serialize. */
r32 = readl(ioc->ioc_regs.ioc_init_sem_reg);
while (r32 & 0x1) {
udelay(20);
r32 = readl(ioc->ioc_regs.ioc_init_sem_reg);
}
fwstate = readl(ioc->ioc_regs.ioc_fwstate);
if (fwstate == BFI_IOC_UNINIT) {
writel(1, ioc->ioc_regs.ioc_init_sem_reg);
return;
}
bfa_nw_ioc_fwver_get(ioc, &fwhdr);
if (swab32(fwhdr.exec) == BFI_FWBOOT_TYPE_NORMAL) {
writel(1, ioc->ioc_regs.ioc_init_sem_reg);
return;
}
bfa_ioc_fwver_clear(ioc);
writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);
writel(BFI_IOC_UNINIT, ioc->ioc_regs.alt_ioc_fwstate);
/*
* Try to lock and then unlock the semaphore.
*/
readl(ioc->ioc_regs.ioc_sem_reg);
writel(1, ioc->ioc_regs.ioc_sem_reg);
/* Unlock init semaphore */
writel(1, ioc->ioc_regs.ioc_init_sem_reg);
}
static void
bfa_ioc_hw_sem_get(struct bfa_ioc *ioc)
{
u32 r32;
/**
* First read to the semaphore register will return 0, subsequent reads
* will return 1. Semaphore is released by writing 1 to the register
*/
r32 = readl(ioc->ioc_regs.ioc_sem_reg);
if (r32 == ~0) {
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEM_ERROR);
return;
}
if (!(r32 & 1)) {
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEMLOCKED);
return;
}
mod_timer(&ioc->sem_timer, jiffies +
msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
}
void
bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc)
{
writel(1, ioc->ioc_regs.ioc_sem_reg);
}
static void
bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc)
{
del_timer(&ioc->sem_timer);
}
/* Initialize LPU local memory (aka secondary memory / SRAM) */
static void
bfa_ioc_lmem_init(struct bfa_ioc *ioc)
{
u32 pss_ctl;
int i;
#define PSS_LMEM_INIT_TIME 10000
pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
pss_ctl &= ~__PSS_LMEM_RESET;
pss_ctl |= __PSS_LMEM_INIT_EN;
/*
* i2c workaround 12.5khz clock
*/
pss_ctl |= __PSS_I2C_CLK_DIV(3UL);
writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
/**
* wait for memory initialization to be complete
*/
i = 0;
do {
pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
i++;
} while (!(pss_ctl & __PSS_LMEM_INIT_DONE) && (i < PSS_LMEM_INIT_TIME));
/**
* If memory initialization is not successful, IOC timeout will catch
* such failures.
*/
BUG_ON(!(pss_ctl & __PSS_LMEM_INIT_DONE));
pss_ctl &= ~(__PSS_LMEM_INIT_DONE | __PSS_LMEM_INIT_EN);
writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
}
static void
bfa_ioc_lpu_start(struct bfa_ioc *ioc)
{
u32 pss_ctl;
/**
* Take processor out of reset.
*/
pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
pss_ctl &= ~__PSS_LPU0_RESET;
writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
}
static void
bfa_ioc_lpu_stop(struct bfa_ioc *ioc)
{
u32 pss_ctl;
/**
* Put processors in reset.
*/
pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
pss_ctl |= (__PSS_LPU0_RESET | __PSS_LPU1_RESET);
writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
}
/* Get driver and firmware versions. */
void
bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
{
u32 pgnum;
u32 loff = 0;
int i;
u32 *fwsig = (u32 *) fwhdr;
pgnum = bfa_ioc_smem_pgnum(ioc, loff);
writel(pgnum, ioc->ioc_regs.host_page_num_fn);
for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32));
i++) {
fwsig[i] =
swab32(readl((loff) + (ioc->ioc_regs.smem_page_start)));
loff += sizeof(u32);
}
}
/* Returns TRUE if same. */
bool
bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
{
struct bfi_ioc_image_hdr *drv_fwhdr;
int i;
drv_fwhdr = (struct bfi_ioc_image_hdr *)
bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc), 0);
for (i = 0; i < BFI_IOC_MD5SUM_SZ; i++) {
if (fwhdr->md5sum[i] != drv_fwhdr->md5sum[i])
return false;
}
return true;
}
/* Return true if current running version is valid. Firmware signature and
* execution context (driver/bios) must match.
*/
static bool
bfa_ioc_fwver_valid(struct bfa_ioc *ioc, u32 boot_env)
{
struct bfi_ioc_image_hdr fwhdr, *drv_fwhdr;
bfa_nw_ioc_fwver_get(ioc, &fwhdr);
drv_fwhdr = (struct bfi_ioc_image_hdr *)
bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc), 0);
if (fwhdr.signature != drv_fwhdr->signature)
return false;
if (swab32(fwhdr.bootenv) != boot_env)
return false;
return bfa_nw_ioc_fwver_cmp(ioc, &fwhdr);
}
/* Conditionally flush any pending message from firmware at start. */
static void
bfa_ioc_msgflush(struct bfa_ioc *ioc)
{
u32 r32;
r32 = readl(ioc->ioc_regs.lpu_mbox_cmd);
if (r32)
writel(1, ioc->ioc_regs.lpu_mbox_cmd);
}
static void
bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force)
{
enum bfi_ioc_state ioc_fwstate;
bool fwvalid;
u32 boot_env;
ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
if (force)
ioc_fwstate = BFI_IOC_UNINIT;
boot_env = BFI_FWBOOT_ENV_OS;
/**
* check if firmware is valid
*/
fwvalid = (ioc_fwstate == BFI_IOC_UNINIT) ?
false : bfa_ioc_fwver_valid(ioc, boot_env);
if (!fwvalid) {
bfa_ioc_boot(ioc, BFI_FWBOOT_TYPE_NORMAL, boot_env);
bfa_ioc_poll_fwinit(ioc);
return;
}
/**
* If hardware initialization is in progress (initialized by other IOC),
* just wait for an initialization completion interrupt.
*/
if (ioc_fwstate == BFI_IOC_INITING) {
bfa_ioc_poll_fwinit(ioc);
return;
}
/**
* If IOC function is disabled and firmware version is same,
* just re-enable IOC.
*/
if (ioc_fwstate == BFI_IOC_DISABLED || ioc_fwstate == BFI_IOC_OP) {
/**
* When using MSI-X any pending firmware ready event should
* be flushed. Otherwise MSI-X interrupts are not delivered.
*/
bfa_ioc_msgflush(ioc);
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
return;
}
/**
* Initialize the h/w for any other states.
*/
bfa_ioc_boot(ioc, BFI_FWBOOT_TYPE_NORMAL, boot_env);
bfa_ioc_poll_fwinit(ioc);
}
void
bfa_nw_ioc_timeout(void *ioc_arg)
{
struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
bfa_fsm_send_event(ioc, IOC_E_TIMEOUT);
}
static void
bfa_ioc_mbox_send(struct bfa_ioc *ioc, void *ioc_msg, int len)
{
u32 *msgp = (u32 *) ioc_msg;
u32 i;
BUG_ON(!(len <= BFI_IOC_MSGLEN_MAX));
/*
* first write msg to mailbox registers
*/
for (i = 0; i < len / sizeof(u32); i++)
writel(cpu_to_le32(msgp[i]),
ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
for (; i < BFI_IOC_MSGLEN_MAX / sizeof(u32); i++)
writel(0, ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
/*
* write 1 to mailbox CMD to trigger LPU event
*/
writel(1, ioc->ioc_regs.hfn_mbox_cmd);
(void) readl(ioc->ioc_regs.hfn_mbox_cmd);
}
static void
bfa_ioc_send_enable(struct bfa_ioc *ioc)
{
struct bfi_ioc_ctrl_req enable_req;
struct timeval tv;
bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ,
bfa_ioc_portid(ioc));
enable_req.clscode = htons(ioc->clscode);
do_gettimeofday(&tv);
enable_req.tv_sec = ntohl(tv.tv_sec);
bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req));
}
static void
bfa_ioc_send_disable(struct bfa_ioc *ioc)
{
struct bfi_ioc_ctrl_req disable_req;
bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ,
bfa_ioc_portid(ioc));
bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req));
}
static void
bfa_ioc_send_getattr(struct bfa_ioc *ioc)
{
struct bfi_ioc_getattr_req attr_req;
bfi_h2i_set(attr_req.mh, BFI_MC_IOC, BFI_IOC_H2I_GETATTR_REQ,
bfa_ioc_portid(ioc));
bfa_dma_be_addr_set(attr_req.attr_addr, ioc->attr_dma.pa);
bfa_ioc_mbox_send(ioc, &attr_req, sizeof(attr_req));
}
void
bfa_nw_ioc_hb_check(void *cbarg)
{
struct bfa_ioc *ioc = cbarg;
u32 hb_count;
hb_count = readl(ioc->ioc_regs.heartbeat);
if (ioc->hb_count == hb_count) {
bfa_ioc_recover(ioc);
return;
} else {
ioc->hb_count = hb_count;
}
bfa_ioc_mbox_poll(ioc);
mod_timer(&ioc->hb_timer, jiffies +
msecs_to_jiffies(BFA_IOC_HB_TOV));
}
static void
bfa_ioc_hb_monitor(struct bfa_ioc *ioc)
{
ioc->hb_count = readl(ioc->ioc_regs.heartbeat);
mod_timer(&ioc->hb_timer, jiffies +
msecs_to_jiffies(BFA_IOC_HB_TOV));
}
static void
bfa_ioc_hb_stop(struct bfa_ioc *ioc)
{
del_timer(&ioc->hb_timer);
}
/* Initiate a full firmware download. */
static void
bfa_ioc_download_fw(struct bfa_ioc *ioc, u32 boot_type,
u32 boot_env)
{
u32 *fwimg;
u32 pgnum;
u32 loff = 0;
u32 chunkno = 0;
u32 i;
u32 asicmode;
fwimg = bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc), chunkno);
pgnum = bfa_ioc_smem_pgnum(ioc, loff);
writel(pgnum, ioc->ioc_regs.host_page_num_fn);
for (i = 0; i < bfa_cb_image_get_size(bfa_ioc_asic_gen(ioc)); i++) {
if (BFA_IOC_FLASH_CHUNK_NO(i) != chunkno) {
chunkno = BFA_IOC_FLASH_CHUNK_NO(i);
fwimg = bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc),
BFA_IOC_FLASH_CHUNK_ADDR(chunkno));
}
/**
* write smem
*/
writel((swab32(fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)])),
((ioc->ioc_regs.smem_page_start) + (loff)));
loff += sizeof(u32);
/**
* handle page offset wrap around
*/
loff = PSS_SMEM_PGOFF(loff);
if (loff == 0) {
pgnum++;
writel(pgnum,
ioc->ioc_regs.host_page_num_fn);
}
}
writel(bfa_ioc_smem_pgnum(ioc, 0),
ioc->ioc_regs.host_page_num_fn);
/*
* Set boot type, env and device mode at the end.
*/
asicmode = BFI_FWBOOT_DEVMODE(ioc->asic_gen, ioc->asic_mode,
ioc->port0_mode, ioc->port1_mode);
writel(asicmode, ((ioc->ioc_regs.smem_page_start)
+ BFI_FWBOOT_DEVMODE_OFF));
writel(boot_type, ((ioc->ioc_regs.smem_page_start)
+ (BFI_FWBOOT_TYPE_OFF)));
writel(boot_env, ((ioc->ioc_regs.smem_page_start)
+ (BFI_FWBOOT_ENV_OFF)));
}
static void
bfa_ioc_reset(struct bfa_ioc *ioc, bool force)
{
bfa_ioc_hwinit(ioc, force);
}
/* BFA ioc enable reply by firmware */
static void
bfa_ioc_enable_reply(struct bfa_ioc *ioc, enum bfa_mode port_mode,
u8 cap_bm)
{
struct bfa_iocpf *iocpf = &ioc->iocpf;
ioc->port_mode = ioc->port_mode_cfg = port_mode;
ioc->ad_cap_bm = cap_bm;
bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_ENABLE);
}
/* Update BFA configuration from firmware configuration. */
static void
bfa_ioc_getattr_reply(struct bfa_ioc *ioc)
{
struct bfi_ioc_attr *attr = ioc->attr;
attr->adapter_prop = ntohl(attr->adapter_prop);
attr->card_type = ntohl(attr->card_type);
attr->maxfrsize = ntohs(attr->maxfrsize);
bfa_fsm_send_event(ioc, IOC_E_FWRSP_GETATTR);
}
/* Attach time initialization of mbox logic. */
static void
bfa_ioc_mbox_attach(struct bfa_ioc *ioc)
{
struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
int mc;
INIT_LIST_HEAD(&mod->cmd_q);
for (mc = 0; mc < BFI_MC_MAX; mc++) {
mod->mbhdlr[mc].cbfn = NULL;
mod->mbhdlr[mc].cbarg = ioc->bfa;
}
}
/* Mbox poll timer -- restarts any pending mailbox requests. */
static void
bfa_ioc_mbox_poll(struct bfa_ioc *ioc)
{
struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
struct bfa_mbox_cmd *cmd;
bfa_mbox_cmd_cbfn_t cbfn;
void *cbarg;
u32 stat;
/**
* If no command pending, do nothing
*/
if (list_empty(&mod->cmd_q))
return;
/**
* If previous command is not yet fetched by firmware, do nothing
*/
stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
if (stat)
return;
/**
* Enqueue command to firmware.
*/
bfa_q_deq(&mod->cmd_q, &cmd);
bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
/**
* Give a callback to the client, indicating that the command is sent
*/
if (cmd->cbfn) {
cbfn = cmd->cbfn;
cbarg = cmd->cbarg;
cmd->cbfn = NULL;
cbfn(cbarg);
}
}
/* Cleanup any pending requests. */
static void
bfa_ioc_mbox_flush(struct bfa_ioc *ioc)
{
struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
struct bfa_mbox_cmd *cmd;
while (!list_empty(&mod->cmd_q))
bfa_q_deq(&mod->cmd_q, &cmd);
}
/**
* bfa_nw_ioc_smem_read - Read data from SMEM to host through PCI memmap
*
* @ioc: memory for IOC
* @tbuf: app memory to store data from smem
* @soff: smem offset
* @sz: size of smem in bytes
*/
static int
bfa_nw_ioc_smem_read(struct bfa_ioc *ioc, void *tbuf, u32 soff, u32 sz)
{
u32 pgnum, loff, r32;
int i, len;
u32 *buf = tbuf;
pgnum = PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, soff);
loff = PSS_SMEM_PGOFF(soff);
/*
* Hold semaphore to serialize pll init and fwtrc.
*/
if (bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg) == 0)
return 1;
writel(pgnum, ioc->ioc_regs.host_page_num_fn);
len = sz/sizeof(u32);
for (i = 0; i < len; i++) {
r32 = swab32(readl((loff) + (ioc->ioc_regs.smem_page_start)));
buf[i] = be32_to_cpu(r32);
loff += sizeof(u32);
/**
* handle page offset wrap around
*/
loff = PSS_SMEM_PGOFF(loff);
if (loff == 0) {
pgnum++;
writel(pgnum, ioc->ioc_regs.host_page_num_fn);
}
}
writel(PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, 0),
ioc->ioc_regs.host_page_num_fn);
/*
* release semaphore
*/
readl(ioc->ioc_regs.ioc_init_sem_reg);
writel(1, ioc->ioc_regs.ioc_init_sem_reg);
return 0;
}
/* Retrieve saved firmware trace from a prior IOC failure. */
int
bfa_nw_ioc_debug_fwtrc(struct bfa_ioc *ioc, void *trcdata, int *trclen)
{
u32 loff = BFI_IOC_TRC_OFF + BNA_DBG_FWTRC_LEN * ioc->port_id;
int tlen, status = 0;
tlen = *trclen;
if (tlen > BNA_DBG_FWTRC_LEN)
tlen = BNA_DBG_FWTRC_LEN;
status = bfa_nw_ioc_smem_read(ioc, trcdata, loff, tlen);
*trclen = tlen;
return status;
}
/* Save firmware trace if configured. */
static void
bfa_nw_ioc_debug_save_ftrc(struct bfa_ioc *ioc)
{
int tlen;
if (ioc->dbg_fwsave_once) {
ioc->dbg_fwsave_once = 0;
if (ioc->dbg_fwsave_len) {
tlen = ioc->dbg_fwsave_len;
bfa_nw_ioc_debug_fwtrc(ioc, ioc->dbg_fwsave, &tlen);
}
}
}
/* Retrieve saved firmware trace from a prior IOC failure. */
int
bfa_nw_ioc_debug_fwsave(struct bfa_ioc *ioc, void *trcdata, int *trclen)
{
int tlen;
if (ioc->dbg_fwsave_len == 0)
return BFA_STATUS_ENOFSAVE;
tlen = *trclen;
if (tlen > ioc->dbg_fwsave_len)
tlen = ioc->dbg_fwsave_len;
memcpy(trcdata, ioc->dbg_fwsave, tlen);
*trclen = tlen;
return BFA_STATUS_OK;
}
static void
bfa_ioc_fail_notify(struct bfa_ioc *ioc)
{
/**
* Notify driver and common modules registered for notification.
*/
ioc->cbfn->hbfail_cbfn(ioc->bfa);
bfa_ioc_event_notify(ioc, BFA_IOC_E_FAILED);
bfa_nw_ioc_debug_save_ftrc(ioc);
}
/* IOCPF to IOC interface */
static void
bfa_ioc_pf_enabled(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(ioc, IOC_E_ENABLED);
}
static void
bfa_ioc_pf_disabled(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(ioc, IOC_E_DISABLED);
}
static void
bfa_ioc_pf_failed(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(ioc, IOC_E_PFFAILED);
}
static void
bfa_ioc_pf_hwfailed(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(ioc, IOC_E_HWFAILED);
}
static void
bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc)
{
/**
* Provide enable completion callback and AEN notification.
*/
ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
}
/* IOC public */
static enum bfa_status
bfa_ioc_pll_init(struct bfa_ioc *ioc)
{
/*
* Hold semaphore so that nobody can access the chip during init.
*/
bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg);
bfa_ioc_pll_init_asic(ioc);
ioc->pllinit = true;
/* Initialize LMEM */
bfa_ioc_lmem_init(ioc);
/*
* release semaphore.
*/
bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_init_sem_reg);
return BFA_STATUS_OK;
}
/* Interface used by diag module to do firmware boot with memory test
* as the entry vector.
*/
static void
bfa_ioc_boot(struct bfa_ioc *ioc, enum bfi_fwboot_type boot_type,
u32 boot_env)
{
bfa_ioc_stats(ioc, ioc_boots);
if (bfa_ioc_pll_init(ioc) != BFA_STATUS_OK)
return;
/**
* Initialize IOC state of all functions on a chip reset.
*/
if (boot_type == BFI_FWBOOT_TYPE_MEMTEST) {
writel(BFI_IOC_MEMTEST, ioc->ioc_regs.ioc_fwstate);
writel(BFI_IOC_MEMTEST, ioc->ioc_regs.alt_ioc_fwstate);
} else {
writel(BFI_IOC_INITING, ioc->ioc_regs.ioc_fwstate);
writel(BFI_IOC_INITING, ioc->ioc_regs.alt_ioc_fwstate);
}
bfa_ioc_msgflush(ioc);
bfa_ioc_download_fw(ioc, boot_type, boot_env);
bfa_ioc_lpu_start(ioc);
}
/* Enable/disable IOC failure auto recovery. */
void
bfa_nw_ioc_auto_recover(bool auto_recover)
{
bfa_nw_auto_recover = auto_recover;
}
static bool
bfa_ioc_msgget(struct bfa_ioc *ioc, void *mbmsg)
{
u32 *msgp = mbmsg;
u32 r32;
int i;
r32 = readl(ioc->ioc_regs.lpu_mbox_cmd);
if ((r32 & 1) == 0)
return false;
/**
* read the MBOX msg
*/
for (i = 0; i < (sizeof(union bfi_ioc_i2h_msg_u) / sizeof(u32));
i++) {
r32 = readl(ioc->ioc_regs.lpu_mbox +
i * sizeof(u32));
msgp[i] = htonl(r32);
}
/**
* turn off mailbox interrupt by clearing mailbox status
*/
writel(1, ioc->ioc_regs.lpu_mbox_cmd);
readl(ioc->ioc_regs.lpu_mbox_cmd);
return true;
}
static void
bfa_ioc_isr(struct bfa_ioc *ioc, struct bfi_mbmsg *m)
{
union bfi_ioc_i2h_msg_u *msg;
struct bfa_iocpf *iocpf = &ioc->iocpf;
msg = (union bfi_ioc_i2h_msg_u *) m;
bfa_ioc_stats(ioc, ioc_isrs);
switch (msg->mh.msg_id) {
case BFI_IOC_I2H_HBEAT:
break;
case BFI_IOC_I2H_ENABLE_REPLY:
bfa_ioc_enable_reply(ioc,
(enum bfa_mode)msg->fw_event.port_mode,
msg->fw_event.cap_bm);
break;
case BFI_IOC_I2H_DISABLE_REPLY:
bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_DISABLE);
break;
case BFI_IOC_I2H_GETATTR_REPLY:
bfa_ioc_getattr_reply(ioc);
break;
default:
BUG_ON(1);
}
}
/**
* bfa_nw_ioc_attach - IOC attach time initialization and setup.
*
* @ioc: memory for IOC
* @bfa: driver instance structure
*/
void
bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa, struct bfa_ioc_cbfn *cbfn)
{
ioc->bfa = bfa;
ioc->cbfn = cbfn;
ioc->fcmode = false;
ioc->pllinit = false;
ioc->dbg_fwsave_once = true;
ioc->iocpf.ioc = ioc;
bfa_ioc_mbox_attach(ioc);
INIT_LIST_HEAD(&ioc->notify_q);
bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
bfa_fsm_send_event(ioc, IOC_E_RESET);
}
/* Driver detach time IOC cleanup. */
void
bfa_nw_ioc_detach(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(ioc, IOC_E_DETACH);
/* Done with detach, empty the notify_q. */
INIT_LIST_HEAD(&ioc->notify_q);
}
/**
* bfa_nw_ioc_pci_init - Setup IOC PCI properties.
*
* @pcidev: PCI device information for this IOC
*/
void
bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
enum bfi_pcifn_class clscode)
{
ioc->clscode = clscode;
ioc->pcidev = *pcidev;
/**
* Initialize IOC and device personality
*/
ioc->port0_mode = ioc->port1_mode = BFI_PORT_MODE_FC;
ioc->asic_mode = BFI_ASIC_MODE_FC;
switch (pcidev->device_id) {
case PCI_DEVICE_ID_BROCADE_CT:
ioc->asic_gen = BFI_ASIC_GEN_CT;
ioc->port0_mode = ioc->port1_mode = BFI_PORT_MODE_ETH;
ioc->asic_mode = BFI_ASIC_MODE_ETH;
ioc->port_mode = ioc->port_mode_cfg = BFA_MODE_CNA;
ioc->ad_cap_bm = BFA_CM_CNA;
break;
case BFA_PCI_DEVICE_ID_CT2:
ioc->asic_gen = BFI_ASIC_GEN_CT2;
if (clscode == BFI_PCIFN_CLASS_FC &&
pcidev->ssid == BFA_PCI_CT2_SSID_FC) {
ioc->asic_mode = BFI_ASIC_MODE_FC16;
ioc->fcmode = true;
ioc->port_mode = ioc->port_mode_cfg = BFA_MODE_HBA;
ioc->ad_cap_bm = BFA_CM_HBA;
} else {
ioc->port0_mode = ioc->port1_mode = BFI_PORT_MODE_ETH;
ioc->asic_mode = BFI_ASIC_MODE_ETH;
if (pcidev->ssid == BFA_PCI_CT2_SSID_FCoE) {
ioc->port_mode =
ioc->port_mode_cfg = BFA_MODE_CNA;
ioc->ad_cap_bm = BFA_CM_CNA;
} else {
ioc->port_mode =
ioc->port_mode_cfg = BFA_MODE_NIC;
ioc->ad_cap_bm = BFA_CM_NIC;
}
}
break;
default:
BUG_ON(1);
}
/**
* Set asic specific interfaces.
*/
if (ioc->asic_gen == BFI_ASIC_GEN_CT)
bfa_nw_ioc_set_ct_hwif(ioc);
else {
WARN_ON(ioc->asic_gen != BFI_ASIC_GEN_CT2);
bfa_nw_ioc_set_ct2_hwif(ioc);
bfa_nw_ioc_ct2_poweron(ioc);
}
bfa_ioc_map_port(ioc);
bfa_ioc_reg_init(ioc);
}
/**
* bfa_nw_ioc_mem_claim - Initialize IOC dma memory
*
* @dm_kva: kernel virtual address of IOC dma memory
* @dm_pa: physical address of IOC dma memory
*/
void
bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc, u8 *dm_kva, u64 dm_pa)
{
/**
* dma memory for firmware attribute
*/
ioc->attr_dma.kva = dm_kva;
ioc->attr_dma.pa = dm_pa;
ioc->attr = (struct bfi_ioc_attr *) dm_kva;
}
/* Return size of dma memory required. */
u32
bfa_nw_ioc_meminfo(void)
{
return roundup(sizeof(struct bfi_ioc_attr), BFA_DMA_ALIGN_SZ);
}
void
bfa_nw_ioc_enable(struct bfa_ioc *ioc)
{
bfa_ioc_stats(ioc, ioc_enables);
ioc->dbg_fwsave_once = true;
bfa_fsm_send_event(ioc, IOC_E_ENABLE);
}
void
bfa_nw_ioc_disable(struct bfa_ioc *ioc)
{
bfa_ioc_stats(ioc, ioc_disables);
bfa_fsm_send_event(ioc, IOC_E_DISABLE);
}
/* Initialize memory for saving firmware trace. */
void
bfa_nw_ioc_debug_memclaim(struct bfa_ioc *ioc, void *dbg_fwsave)
{
ioc->dbg_fwsave = dbg_fwsave;
ioc->dbg_fwsave_len = ioc->iocpf.auto_recover ? BNA_DBG_FWTRC_LEN : 0;
}
static u32
bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr)
{
return PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, fmaddr);
}
/* Register mailbox message handler function, to be called by common modules */
void
bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg)
{
struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
mod->mbhdlr[mc].cbfn = cbfn;
mod->mbhdlr[mc].cbarg = cbarg;
}
/**
* bfa_nw_ioc_mbox_queue - Queue a mailbox command request to firmware.
*
* @ioc: IOC instance
* @cmd: Mailbox command
*
* Waits if mailbox is busy. Responsibility of caller to serialize
*/
bool
bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd,
bfa_mbox_cmd_cbfn_t cbfn, void *cbarg)
{
struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
u32 stat;
cmd->cbfn = cbfn;
cmd->cbarg = cbarg;
/**
* If a previous command is pending, queue new command
*/
if (!list_empty(&mod->cmd_q)) {
list_add_tail(&cmd->qe, &mod->cmd_q);
return true;
}
/**
* If mailbox is busy, queue command for poll timer
*/
stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
if (stat) {
list_add_tail(&cmd->qe, &mod->cmd_q);
return true;
}
/**
* mailbox is free -- queue command to firmware
*/
bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
return false;
}
/* Handle mailbox interrupts */
void
bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc)
{
struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
struct bfi_mbmsg m;
int mc;
if (bfa_ioc_msgget(ioc, &m)) {
/**
* Treat IOC message class as special.
*/
mc = m.mh.msg_class;
if (mc == BFI_MC_IOC) {
bfa_ioc_isr(ioc, &m);
return;
}
if ((mc >= BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
return;
mod->mbhdlr[mc].cbfn(mod->mbhdlr[mc].cbarg, &m);
}
bfa_ioc_lpu_read_stat(ioc);
/**
* Try to send pending mailbox commands
*/
bfa_ioc_mbox_poll(ioc);
}
void
bfa_nw_ioc_error_isr(struct bfa_ioc *ioc)
{
bfa_ioc_stats(ioc, ioc_hbfails);
bfa_ioc_stats_hb_count(ioc, ioc->hb_count);
bfa_fsm_send_event(ioc, IOC_E_HWERROR);
}
/* return true if IOC is disabled */
bool
bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc)
{
return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabling) ||
bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabled);
}
/* return true if IOC is operational */
bool
bfa_nw_ioc_is_operational(struct bfa_ioc *ioc)
{
return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op);
}
/* Add to IOC heartbeat failure notification queue. To be used by common
* modules such as cee, port, diag.
*/
void
bfa_nw_ioc_notify_register(struct bfa_ioc *ioc,
struct bfa_ioc_notify *notify)
{
list_add_tail(¬ify->qe, &ioc->notify_q);
}
#define BFA_MFG_NAME "Brocade"
static void
bfa_ioc_get_adapter_attr(struct bfa_ioc *ioc,
struct bfa_adapter_attr *ad_attr)
{
struct bfi_ioc_attr *ioc_attr;
ioc_attr = ioc->attr;
bfa_ioc_get_adapter_serial_num(ioc, ad_attr->serial_num);
bfa_ioc_get_adapter_fw_ver(ioc, ad_attr->fw_ver);
bfa_ioc_get_adapter_optrom_ver(ioc, ad_attr->optrom_ver);
bfa_ioc_get_adapter_manufacturer(ioc, ad_attr->manufacturer);
memcpy(&ad_attr->vpd, &ioc_attr->vpd,
sizeof(struct bfa_mfg_vpd));
ad_attr->nports = bfa_ioc_get_nports(ioc);
ad_attr->max_speed = bfa_ioc_speed_sup(ioc);
bfa_ioc_get_adapter_model(ioc, ad_attr->model);
/* For now, model descr uses same model string */
bfa_ioc_get_adapter_model(ioc, ad_attr->model_descr);
ad_attr->card_type = ioc_attr->card_type;
ad_attr->is_mezz = bfa_mfg_is_mezz(ioc_attr->card_type);
if (BFI_ADAPTER_IS_SPECIAL(ioc_attr->adapter_prop))
ad_attr->prototype = 1;
else
ad_attr->prototype = 0;
ad_attr->pwwn = bfa_ioc_get_pwwn(ioc);
ad_attr->mac = bfa_nw_ioc_get_mac(ioc);
ad_attr->pcie_gen = ioc_attr->pcie_gen;
ad_attr->pcie_lanes = ioc_attr->pcie_lanes;
ad_attr->pcie_lanes_orig = ioc_attr->pcie_lanes_orig;
ad_attr->asic_rev = ioc_attr->asic_rev;
bfa_ioc_get_pci_chip_rev(ioc, ad_attr->hw_ver);
}
static enum bfa_ioc_type
bfa_ioc_get_type(struct bfa_ioc *ioc)
{
if (ioc->clscode == BFI_PCIFN_CLASS_ETH)
return BFA_IOC_TYPE_LL;
BUG_ON(!(ioc->clscode == BFI_PCIFN_CLASS_FC));
return (ioc->attr->port_mode == BFI_PORT_MODE_FC)
? BFA_IOC_TYPE_FC : BFA_IOC_TYPE_FCoE;
}
static void
bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc, char *serial_num)
{
memset(serial_num, 0, BFA_ADAPTER_SERIAL_NUM_LEN);
memcpy(serial_num,
(void *)ioc->attr->brcd_serialnum,
BFA_ADAPTER_SERIAL_NUM_LEN);
}
static void
bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc, char *fw_ver)
{
memset(fw_ver, 0, BFA_VERSION_LEN);
memcpy(fw_ver, ioc->attr->fw_version, BFA_VERSION_LEN);
}
static void
bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc, char *chip_rev)
{
BUG_ON(!(chip_rev));
memset(chip_rev, 0, BFA_IOC_CHIP_REV_LEN);
chip_rev[0] = 'R';
chip_rev[1] = 'e';
chip_rev[2] = 'v';
chip_rev[3] = '-';
chip_rev[4] = ioc->attr->asic_rev;
chip_rev[5] = '\0';
}
static void
bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc, char *optrom_ver)
{
memset(optrom_ver, 0, BFA_VERSION_LEN);
memcpy(optrom_ver, ioc->attr->optrom_version,
BFA_VERSION_LEN);
}
static void
bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc, char *manufacturer)
{
memset(manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
memcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
}
static void
bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model)
{
struct bfi_ioc_attr *ioc_attr;
BUG_ON(!(model));
memset(model, 0, BFA_ADAPTER_MODEL_NAME_LEN);
ioc_attr = ioc->attr;
snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
BFA_MFG_NAME, ioc_attr->card_type);
}
static enum bfa_ioc_state
bfa_ioc_get_state(struct bfa_ioc *ioc)
{
enum bfa_iocpf_state iocpf_st;
enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);
if (ioc_st == BFA_IOC_ENABLING ||
ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {
iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
switch (iocpf_st) {
case BFA_IOCPF_SEMWAIT:
ioc_st = BFA_IOC_SEMWAIT;
break;
case BFA_IOCPF_HWINIT:
ioc_st = BFA_IOC_HWINIT;
break;
case BFA_IOCPF_FWMISMATCH:
ioc_st = BFA_IOC_FWMISMATCH;
break;
case BFA_IOCPF_FAIL:
ioc_st = BFA_IOC_FAIL;
break;
case BFA_IOCPF_INITFAIL:
ioc_st = BFA_IOC_INITFAIL;
break;
default:
break;
}
}
return ioc_st;
}
void
bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
{
memset((void *)ioc_attr, 0, sizeof(struct bfa_ioc_attr));
ioc_attr->state = bfa_ioc_get_state(ioc);
ioc_attr->port_id = ioc->port_id;
ioc_attr->port_mode = ioc->port_mode;
ioc_attr->port_mode_cfg = ioc->port_mode_cfg;
ioc_attr->cap_bm = ioc->ad_cap_bm;
ioc_attr->ioc_type = bfa_ioc_get_type(ioc);
bfa_ioc_get_adapter_attr(ioc, &ioc_attr->adapter_attr);
ioc_attr->pci_attr.device_id = ioc->pcidev.device_id;
ioc_attr->pci_attr.pcifn = ioc->pcidev.pci_func;
bfa_ioc_get_pci_chip_rev(ioc, ioc_attr->pci_attr.chip_rev);
}
/* WWN public */
static u64
bfa_ioc_get_pwwn(struct bfa_ioc *ioc)
{
return ioc->attr->pwwn;
}
mac_t
bfa_nw_ioc_get_mac(struct bfa_ioc *ioc)
{
return ioc->attr->mac;
}
/* Firmware failure detected. Start recovery actions. */
static void
bfa_ioc_recover(struct bfa_ioc *ioc)
{
pr_crit("Heart Beat of IOC has failed\n");
bfa_ioc_stats(ioc, ioc_hbfails);
bfa_ioc_stats_hb_count(ioc, ioc->hb_count);
bfa_fsm_send_event(ioc, IOC_E_HBFAIL);
}
/* BFA IOC PF private functions */
static void
bfa_iocpf_enable(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_ENABLE);
}
static void
bfa_iocpf_disable(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_DISABLE);
}
static void
bfa_iocpf_fail(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FAIL);
}
static void
bfa_iocpf_initfail(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL);
}
static void
bfa_iocpf_getattrfail(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_GETATTRFAIL);
}
static void
bfa_iocpf_stop(struct bfa_ioc *ioc)
{
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_STOP);
}
void
bfa_nw_iocpf_timeout(void *ioc_arg)
{
struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
enum bfa_iocpf_state iocpf_st;
iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
if (iocpf_st == BFA_IOCPF_HWINIT)
bfa_ioc_poll_fwinit(ioc);
else
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_TIMEOUT);
}
void
bfa_nw_iocpf_sem_timeout(void *ioc_arg)
{
struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
bfa_ioc_hw_sem_get(ioc);
}
static void
bfa_ioc_poll_fwinit(struct bfa_ioc *ioc)
{
u32 fwstate = readl(ioc->ioc_regs.ioc_fwstate);
if (fwstate == BFI_IOC_DISABLED) {
bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
return;
}
if (ioc->iocpf.poll_time >= BFA_IOC_TOV) {
bfa_nw_iocpf_timeout(ioc);
} else {
ioc->iocpf.poll_time += BFA_IOC_POLL_TOV;
mod_timer(&ioc->iocpf_timer, jiffies +
msecs_to_jiffies(BFA_IOC_POLL_TOV));
}
}
/*
* Flash module specific
*/
/*
* FLASH DMA buffer should be big enough to hold both MFG block and
* asic block(64k) at the same time and also should be 2k aligned to
* avoid write segement to cross sector boundary.
*/
#define BFA_FLASH_SEG_SZ 2048
#define BFA_FLASH_DMA_BUF_SZ \
roundup(0x010000 + sizeof(struct bfa_mfg_block), BFA_FLASH_SEG_SZ)
static void
bfa_flash_cb(struct bfa_flash *flash)
{
flash->op_busy = 0;
if (flash->cbfn)
flash->cbfn(flash->cbarg, flash->status);
}
static void
bfa_flash_notify(void *cbarg, enum bfa_ioc_event event)
{
struct bfa_flash *flash = cbarg;
switch (event) {
case BFA_IOC_E_DISABLED:
case BFA_IOC_E_FAILED:
if (flash->op_busy) {
flash->status = BFA_STATUS_IOC_FAILURE;
flash->cbfn(flash->cbarg, flash->status);
flash->op_busy = 0;
}
break;
default:
break;
}
}
/*
* Send flash write request.
*/
static void
bfa_flash_write_send(struct bfa_flash *flash)
{
struct bfi_flash_write_req *msg =
(struct bfi_flash_write_req *) flash->mb.msg;
u32 len;
msg->type = be32_to_cpu(flash->type);
msg->instance = flash->instance;
msg->offset = be32_to_cpu(flash->addr_off + flash->offset);
len = (flash->residue < BFA_FLASH_DMA_BUF_SZ) ?
flash->residue : BFA_FLASH_DMA_BUF_SZ;
msg->length = be32_to_cpu(len);
/* indicate if it's the last msg of the whole write operation */
msg->last = (len == flash->residue) ? 1 : 0;
bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_WRITE_REQ,
bfa_ioc_portid(flash->ioc));
bfa_alen_set(&msg->alen, len, flash->dbuf_pa);
memcpy(flash->dbuf_kva, flash->ubuf + flash->offset, len);
bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
flash->residue -= len;
flash->offset += len;
}
/**
* bfa_flash_read_send - Send flash read request.
*
* @cbarg: callback argument
*/
static void
bfa_flash_read_send(void *cbarg)
{
struct bfa_flash *flash = cbarg;
struct bfi_flash_read_req *msg =
(struct bfi_flash_read_req *) flash->mb.msg;
u32 len;
msg->type = be32_to_cpu(flash->type);
msg->instance = flash->instance;
msg->offset = be32_to_cpu(flash->addr_off + flash->offset);
len = (flash->residue < BFA_FLASH_DMA_BUF_SZ) ?
flash->residue : BFA_FLASH_DMA_BUF_SZ;
msg->length = be32_to_cpu(len);
bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_READ_REQ,
bfa_ioc_portid(flash->ioc));
bfa_alen_set(&msg->alen, len, flash->dbuf_pa);
bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
}
/**
* bfa_flash_intr - Process flash response messages upon receiving interrupts.
*
* @flasharg: flash structure
* @msg: message structure
*/
static void
bfa_flash_intr(void *flasharg, struct bfi_mbmsg *msg)
{
struct bfa_flash *flash = flasharg;
u32 status;
union {
struct bfi_flash_query_rsp *query;
struct bfi_flash_write_rsp *write;
struct bfi_flash_read_rsp *read;
struct bfi_mbmsg *msg;
} m;
m.msg = msg;
/* receiving response after ioc failure */
if (!flash->op_busy && msg->mh.msg_id != BFI_FLASH_I2H_EVENT)
return;
switch (msg->mh.msg_id) {
case BFI_FLASH_I2H_QUERY_RSP:
status = be32_to_cpu(m.query->status);
if (status == BFA_STATUS_OK) {
u32 i;
struct bfa_flash_attr *attr, *f;
attr = (struct bfa_flash_attr *) flash->ubuf;
f = (struct bfa_flash_attr *) flash->dbuf_kva;
attr->status = be32_to_cpu(f->status);
attr->npart = be32_to_cpu(f->npart);
for (i = 0; i < attr->npart; i++) {
attr->part[i].part_type =
be32_to_cpu(f->part[i].part_type);
attr->part[i].part_instance =
be32_to_cpu(f->part[i].part_instance);
attr->part[i].part_off =
be32_to_cpu(f->part[i].part_off);
attr->part[i].part_size =
be32_to_cpu(f->part[i].part_size);
attr->part[i].part_len =
be32_to_cpu(f->part[i].part_len);
attr->part[i].part_status =
be32_to_cpu(f->part[i].part_status);
}
}
flash->status = status;
bfa_flash_cb(flash);
break;
case BFI_FLASH_I2H_WRITE_RSP:
status = be32_to_cpu(m.write->status);
if (status != BFA_STATUS_OK || flash->residue == 0) {
flash->status = status;
bfa_flash_cb(flash);
} else
bfa_flash_write_send(flash);
break;
case BFI_FLASH_I2H_READ_RSP:
status = be32_to_cpu(m.read->status);
if (status != BFA_STATUS_OK) {
flash->status = status;
bfa_flash_cb(flash);
} else {
u32 len = be32_to_cpu(m.read->length);
memcpy(flash->ubuf + flash->offset,
flash->dbuf_kva, len);
flash->residue -= len;
flash->offset += len;
if (flash->residue == 0) {
flash->status = status;
bfa_flash_cb(flash);
} else
bfa_flash_read_send(flash);
}
break;
case BFI_FLASH_I2H_BOOT_VER_RSP:
case BFI_FLASH_I2H_EVENT:
break;
default:
WARN_ON(1);
}
}
/*
* Flash memory info API.
*/
u32
bfa_nw_flash_meminfo(void)
{
return roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
}
/**
* bfa_nw_flash_attach - Flash attach API.
*
* @flash: flash structure
* @ioc: ioc structure
* @dev: device structure
*/
void
bfa_nw_flash_attach(struct bfa_flash *flash, struct bfa_ioc *ioc, void *dev)
{
flash->ioc = ioc;
flash->cbfn = NULL;
flash->cbarg = NULL;
flash->op_busy = 0;
bfa_nw_ioc_mbox_regisr(flash->ioc, BFI_MC_FLASH, bfa_flash_intr, flash);
bfa_q_qe_init(&flash->ioc_notify);
bfa_ioc_notify_init(&flash->ioc_notify, bfa_flash_notify, flash);
list_add_tail(&flash->ioc_notify.qe, &flash->ioc->notify_q);
}
/**
* bfa_nw_flash_memclaim - Claim memory for flash
*
* @flash: flash structure
* @dm_kva: pointer to virtual memory address
* @dm_pa: physical memory address
*/
void
bfa_nw_flash_memclaim(struct bfa_flash *flash, u8 *dm_kva, u64 dm_pa)
{
flash->dbuf_kva = dm_kva;
flash->dbuf_pa = dm_pa;
memset(flash->dbuf_kva, 0, BFA_FLASH_DMA_BUF_SZ);
dm_kva += roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
dm_pa += roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
}
/**
* bfa_nw_flash_get_attr - Get flash attribute.
*
* @flash: flash structure
* @attr: flash attribute structure
* @cbfn: callback function
* @cbarg: callback argument
*
* Return status.
*/
enum bfa_status
bfa_nw_flash_get_attr(struct bfa_flash *flash, struct bfa_flash_attr *attr,
bfa_cb_flash cbfn, void *cbarg)
{
struct bfi_flash_query_req *msg =
(struct bfi_flash_query_req *) flash->mb.msg;
if (!bfa_nw_ioc_is_operational(flash->ioc))
return BFA_STATUS_IOC_NON_OP;
if (flash->op_busy)
return BFA_STATUS_DEVBUSY;
flash->op_busy = 1;
flash->cbfn = cbfn;
flash->cbarg = cbarg;
flash->ubuf = (u8 *) attr;
bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_QUERY_REQ,
bfa_ioc_portid(flash->ioc));
bfa_alen_set(&msg->alen, sizeof(struct bfa_flash_attr), flash->dbuf_pa);
bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
return BFA_STATUS_OK;
}
/**
* bfa_nw_flash_update_part - Update flash partition.
*
* @flash: flash structure
* @type: flash partition type
* @instance: flash partition instance
* @buf: update data buffer
* @len: data buffer length
* @offset: offset relative to the partition starting address
* @cbfn: callback function
* @cbarg: callback argument
*
* Return status.
*/
enum bfa_status
bfa_nw_flash_update_part(struct bfa_flash *flash, u32 type, u8 instance,
void *buf, u32 len, u32 offset,
bfa_cb_flash cbfn, void *cbarg)
{
if (!bfa_nw_ioc_is_operational(flash->ioc))
return BFA_STATUS_IOC_NON_OP;
/*
* 'len' must be in word (4-byte) boundary
*/
if (!len || (len & 0x03))
return BFA_STATUS_FLASH_BAD_LEN;
if (type == BFA_FLASH_PART_MFG)
return BFA_STATUS_EINVAL;
if (flash->op_busy)
return BFA_STATUS_DEVBUSY;
flash->op_busy = 1;
flash->cbfn = cbfn;
flash->cbarg = cbarg;
flash->type = type;
flash->instance = instance;
flash->residue = len;
flash->offset = 0;
flash->addr_off = offset;
flash->ubuf = buf;
bfa_flash_write_send(flash);
return BFA_STATUS_OK;
}
/**
* bfa_nw_flash_read_part - Read flash partition.
*
* @flash: flash structure
* @type: flash partition type
* @instance: flash partition instance
* @buf: read data buffer
* @len: data buffer length
* @offset: offset relative to the partition starting address
* @cbfn: callback function
* @cbarg: callback argument
*
* Return status.
*/
enum bfa_status
bfa_nw_flash_read_part(struct bfa_flash *flash, u32 type, u8 instance,
void *buf, u32 len, u32 offset,
bfa_cb_flash cbfn, void *cbarg)
{
if (!bfa_nw_ioc_is_operational(flash->ioc))
return BFA_STATUS_IOC_NON_OP;
/*
* 'len' must be in word (4-byte) boundary
*/
if (!len || (len & 0x03))
return BFA_STATUS_FLASH_BAD_LEN;
if (flash->op_busy)
return BFA_STATUS_DEVBUSY;
flash->op_busy = 1;
flash->cbfn = cbfn;
flash->cbarg = cbarg;
flash->type = type;
flash->instance = instance;
flash->residue = len;
flash->offset = 0;
flash->addr_off = offset;
flash->ubuf = buf;
bfa_flash_read_send(flash);
return BFA_STATUS_OK;
}
